Calibrating Temperature

A little ahead of myself here but I'm wondering if the temperature readout is exact (or very close)? The last couple of steaks I cooked where done so at different temperatures yet both turned out the same doneness. I probably should heat some water and use a high quality temp sensor to double check but the question is do the Joules ever need to be recalibrated and if so, how is that done? Thanks in advance.

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wolfiegirl

First, do the test to see if your Joule is hitting and maintaining the temps you're setting. If not then open a help ticket (you can do that through the app) and the CS team will help you make it right!

pd3ski_278514

Exactly as byrdie says, do the test. My Joules appear to be very accurate. I use a Thermopen to test and it is always within a tenth. Question is... how different were your temperatures and for how long?? Measure your water temp yeah.. but measure your two steak temps internally as well.

fisher23

I use a Thermoworks ThermaQ, one probe in the water and the other with a sous vide probe in the center core. I have two Joules and both are right on. You say they were done at different temperatures but turned out the same doneness, what was your target doneness and what temperatures were they cooked at? Color is not the indication for doneness, temperature is.

Dave_Remillard_524733

For steaks I have used 140 and then 154. Pork loin chops cooked at 140 and then at 149. No apparent difference in color or texture. Before possibly wasting time with a help ticket next time I use the Joule I'll confirm with another temp. sensor. Thanks for the responses. Still a rookie so maybe I'm expecting more than I should.

Chris_Young_80640

So the temperature sensor in Joule cannot be user calibrated. That's because we aim for system accuracy of +- 0.05 °C, which is substantially greater than the accuracy of even very good digital thermometers, like those from Thermoworks (their total system accuracy is +- 0.4 °C, nearly 10X worse than Joule).

So the reality is that you would be better off calibrating your thermometer with Joule, rather than the other way around.